Home / 209,583.32-314,371.87-51,811.72

Finding the Fourth Proportional to 209,583.32, 314,371.87 and 51,811.72

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Solution

The fourth proportional to 209,583.32, 314,371.87 and 51,811.72 is: 77,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,583.32 : 314,371.87 = 51,811.72 : x
  2. Step 2: Convert to fraction form
    209,583.32/314,371.87 = 51,811.72/x
  3. Step 3: Cross multiply
    209,583.32x = 314,371.87 × 51,811.72
  4. Step 4: Simplify right side
    209,583.32x = 16,288,146,388.86
  5. Step 5: Solve for x
    x = 16,288,146,388.86/209,583.32
  6. Step 6: Final answer
    x = 77,716.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.